Chair iron



CHAIR IRON Filed Oct. 29, 1930 Patented July 5, 1932 UNITED srATE-s PATENT' OFFICE 7 n HARRY W'. BOLENS, OF PORT WASHINGTON, WISCONSIN CHAIR IRON VApplication filed October29, 193. Serial 110,491,955.

This inventionpertains to chair irons and vparticularly to an iron fabricated from sheet ciiic object resides in the provision of an iron of the foregoing character having a high pivoted seat spider and widelyspaced tension springs, whereby the iron maybe set well down upon the spindle. Y

A more specific object resides in the provison of sound deadening or insulation pads disposed between the membersfrom which the iron is fabricated, thus eliminating accentuation and transmission of squeaking 25. noises originating from the action of the tension springs. Y

Astill further object resides in extending the seat saddle downwardly to receive the spring tension adjusting means, and to engage one end of the spindle yoke to limit movement of the spider in the direction occasioned by the tension springs.

With the above and other objects in view, which will `appear as the description proceeds, the invention resides'in the novel construction, combination, and arrangement of parts substantially as hereinafter described and'more particularly defined by the appended: claims, it being understood that suchE 4G changes in the precise embodimentk ofthe` herein disclosedk invention may be made as come within the scope of the claims.

- In the accompanying drawing is illustrated'one complete example of the physical embodiment of the present invention constructed according to the best mode so far devised for the practical application of the principles thereof.

u In the drawing, Figure 1 is a vertical lon- 4by riveting or bolting the same thereto, the

-ment between the spider and yoke and Valso Ygitudinal section through yan iron construct-v ed in accordance with the present invention; Figure 2 isv a longitudinal plan section taken on the-line 2--2 of Figure 1;. and f Figure 3 is avertical transverse section taken on the line 3-.3of-Fgure 1. Y

Referringnow more particularly to the ac Vcompanying drawing, the numeral/1' desig.- nates a conventional spindle whichfcarries a yoke`2, the latter being preferably formed vin the shape of a cup within which the tenco sion means hereinafter describedis housed.

- rlfhe yoke 2 is secured to the head of `the spindle 1 by. means of a transverse arched strap 3 secured upon the botto-m of the yoke in-any suitable manner and having its archedportion engaged with the head ofthe-spindle by riveting or other suitable means, it being noted vparticularly in Figures2 and S'that the arched portion of the strap 3 is centrally positioned with relationto the yoke. l f Pivo-tally mounted on the yoke-2 is a seat spider 4 comprising a pairof angle spider arms .5 secured upon a saddle 6 preferably reason forv which will belater explained.

The saddle 6 is providedatits front end .with a depending apron 7, both the apron and the saddle having longitudinal side i' iianges4 8 adapted to straddle the yoke 2, which flanges serve to insure proper aligneffect the desired reenforcement for both the saddle and its depending apron. Due to the somewhat excessive width ofthe ysaddle 6, in some instances itmay b-e desirable to transversely reenforce the same, in .which a-reen- -forcing strap 9 issecured transversely to the inner side of the apron. Also, vertical webs 10 may be welded or otherwise attached to the inner faces of the saddle and apron to v further reenforcethe same.

As best shown in Figures 1 and 3, the spider .t is pivotally mountedV upon the yoke by means of a pintle bolt 11 passing through the flange ofthe spider arms, the saddle, and the sidesofthe'yoke 2 adjacent their upper edges, thus affording a'high pivot point with relationl to the spindle which, because of the mannerof attaching the yoke to the spindle, provides an iron of reduced height, whereby 17, the opposite ends of which springs engage spring seats 18 riveted or otherwise secured to the front wall of the yoke 2. j

A fulcrum strap 20, mounted on the outer end of the adjusting bolt 14, engages ade- Apressionin the front of the-apron to allow relative movement between the bolt and apron when the spider 'is tilted. A hand wheel 19, threaded on the outer end of the bolt, serves toy regulate tension upon the spring-*17.

In fabricating or connecting the various members comprising the iron, it will be noted in all'instances that pads or washers 21 of composition or sound deadening material are positioned between 'theengaging surfaces of the adjacent members, thus preventing the usual squeaking noises, resulting from action of the springs, from 'being accentuated or Vtransmitted from one member to another, whlch'feature is highly desirable m oiices utilizing a considerable number of chairs. In operation, it will be quite apparent that the spring 1? will permit the spider 4: to be Vtilted rearwardly .upon its pintle 11 against the tension of the springs, in which action the saddle 6 engages the top edges of the sides .of the .yoke 2 to limit movement ofthe spider in that direction, while the apron 7 engages the front of the .yoke tolimit .movement occasioned by the tension of the springs. Thus,

it will be seen that theiapron serves two purposes, namely, as a stop, and to carry the tensioning means. Y

lIt will also be noted, particularly in Fig- V-ures 2 and 3, that the tension springs are lil) ` spaced sufficiently apart to Aenable the arched Ayoke to be. positioned therebetween, which allows the yoke to be secured well down on the spindle, which reduces the height of the iron from the floor, and as heretofore eX- plained, allows an exceedingly heavy upholstered seat to be used without unduly -increasing the height of the chair.

It will furtheribe appreciated that an eX- ceedingl'y simple and rigid structure has been provided, in which the parts of the iron, although formed of sheet material, are thorcured to said stationary member and having its arched portion positioned between said springs, and a spindlehavi-ng its head secured ,tol the arched portion of said strap.

2. A chair iron comprising a spindle, a cup-'shaped yoke secured to said spindle, a

seatJ` spiderincluding a saddle having longitudinal spider arms secured thereto, means `pivotally connecting the saddle tothe yoke,

an apron depending from said saddle .for engagement 'with the vfront of saidyoke, a bolt passing through said apron andthe front of fv saidyoke, a transverse spring retainer oarried on kthe inner en-d of said bol-t1, `spaced springs seated on said retainerand engaging the front of said yoke, and a hand Wheel ensaid apron `for vadjt'lsting said boit.

Achair iron comprising a spindle, a yoke secured to's'aid spindle, a -s'eat spider in- Vcluding a saddle having longitudinal spider arms secured thereto, said saddle being pivotally connected to said yoke adjacent its upperedges, an apron depending fromsa'id saddle Vfor engagement with therfr'ont of said yoke, 'a bolt passing through said apron and 1 the front ofsaid yoke, a transverse spring retainer carried on the inner end of said bolt,`

spaced springs seated on Vsaid retainer and `engaging the front of said yoke, and a hand Vwheel 'enga ging said apron lfor adjusting sai-d bolt. A Y r 4. Achair iron comprising aspind-le, a yoke i secured to' said spindle, a seat 'spider `including a connecting saddle havinga vert-ical web for. engagement 'with the frontof "said yoke, said seat spider being-.pivotallymounted on said yoke adjacent its upper edges, -a bolt passing through said web `at thefront of said yoke, a 'transverse spring retainer carried on the vinner end of said (bolt, spaced springs -seated on Vsaid retainer fand* "engaging the front of said yoke, and a hand Wheel engaging sai-d web for adjusting sai-d bolt.

In testimony that I claim the 'foregoing I vhave hereunto set hand at -lVLilfwau'kee1 I in the county of Milwaukee 'and-State of oughly reenforced to provide Vthe desired strength or rigidity necessary because ofthe "strainY to which they aresubjected. It has also beenY found fromy actual eX- .peri'ence that through the method of insula- ,i

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tion employed between the various ,parts u .1, i 

